Lanz Bulldog D 9506

The Lanz Bulldog D 9506 is a tractor of the HR 8 series,[3] produced by Heinrich Lanz AG in Mannheim from 1934 to 1955, with a production stop in 1945. In total, 3817 units were produced.[3] The tractor was sold under the brand name Ackerluft (field-air). The Ursus C-45, produced in Poland from 1947 to 1959, was an illegal copy of the D 9506.[4]

Lanz Bulldog D 9606
Lanz Bulldog D 9506
Overview
TypeTractor
ManufacturerLanz Bulldog
Also calledAckerluft
Production1934 – 1955[1]
AssemblyMannheim
Body and chassis
RelatedUrsus C-45
Powertrain
EngineHot-bulb, Inline one-cylinder, 10.3 l (28 kW)
Transmission3-speed manual
PropulsionTyres
Dimensions
Wheelbase2036 mm[2]
Length3390 mm[2]
Width1792 mm[2]
Height2185 mm[2]
Kerb weight3950 kg[2]
Chronology
PredecessorHR 7 series D 8506
SuccessorNone

Description

The D 9506 utilises a frameless block construction. It has a rear live axle and a dead front beam axle. The front axle was available with optional leaf springs. The tractor has air filled tyres. The D 9506 does not have a lockable differential. The gearbox is a manual 3-speed Lanz gearbox with a reverse gear, and an additional range, this makes 6 forward gears and 2 reverse gears. The minimum speed is 3,3 km/h in first gear, maximum speed is 16,7 km/h in sixth gear. The drum brakes at the rear wheels are foot-operated, the handbrake locks the gearbox.

The standard Lanz hot-bulb engine with a displacement of 10.3 l was used, it has a thermosiphon cooler. Compared to the predecessor series HR 6 and HR 7, the engine now has a better speed governor, the rated engine speed was increased from 540 min−1 to 630 min−1.[1] Many sorts of diesel oil can be used as fuel.[5] The D 9506 has an electrical system. If a starter motor is used, the lead-battery has a capacity of 94 Ah, without a starter motor the capacity is 75 Ah.[2] The Lanz factory offered additional accessories, such as a cab or fenders.[1]

Technical Data

D 9506
Production 1934–1944
1945–1955[1]
Engine characteristics One-cylinder, two-stroke, hot-bulb akroyd engine, no valves, no carburettor; thermosiphon cooling system[6]
Fuel Fuel oil, Diesel fuel, Kerosene, Biodiesel[5]
Fuel injection pressure and injection time 80 bar, crank angle 135°[2]
Bore × Stroke, Displacement 225 mm × 260 mm,
10.338 dm³[1]
Compression ratio 5:1[5]
Rated power at 630 min−1 28 kW[1]
Maximum power for an hour at 630 min−1 33 kW[1]
Torque at 630 min−1 500 N·m
Gearbox 3-speed manual with two ranges (6 forward, 2 reverse gears)[2]
Propulsion Tyres
Maximum speed 16.7 km/h[2]
Fuel consumption 326 g/kWh[2]
Fuel tank capacity 90 l
Electrical power system Lead-acid battery, 12 V / 94 Ah[2]

References

  1. fahrzeugseiten.de: Lanz HR8 - D9500, D9506, D9511, D9531 und D9539 (german)
  2. heinrich-lanz.de: Lanz – Datenblatt für die Typen D 8506, D 9506 und D 1506 (german)
  3. Siem, Gerhard: Traktoren Schlepper / Jahrbuch 2009. Page 208. October 2008. ISBN 978-3933451088 (german)
  4. Siem, Gerhard: Traktoren Schlepper / Jahrbuch 2009. Page 291. October 2008. ISBN 978-3933451088 (german)
  5. lanz-diesel.de: Technische Daten (meines) LANZ BULLDOG D8506 (german)
  6. Eilbote Online: Technische Daten Lanz Bulldog D9506 - Traktor Archived 2016-03-04 at the Wayback Machine (german)
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